I use Alpine 2.10 in an environment where I have to sort long lists of emails (several hundred every few days). If I sort by subject ($, then S) there is a ton of email that seems to still position themselves at seemingly random positions in the list. I am suspicious that non-printable characters are being used in the sort. The subject lines are still not alphebetized, but in a different order. Is there a workaround to ensure that the subject lines are properly sorted without regard to possibly non-printable characters?